package com.woniuxy02;

/**
 * @author 作者
 * @create 2025-09-02 15:46
 */
public class Test05 {
    public static void main(String[] args) {

        Book book1=new Book();
        System.out.println(book1.show());

        Book book2=new Book("aaa","bbb",70.1,"aaa","ccc","ddd");
        System.out.println(book2.show());

        Book book3=new Book("333","333",0,null,null,null);
        System.out.println(book3.show());

        Book book4=new Book("333","333",20,null,null,"xxxx");
        System.out.println(book4.show());

        Book book5=new Book("333","333",20);
        System.out.println(book5.show());
    }
}
